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Finding the Third Proportional to 86,611.50 and 126,920.25

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Solution

The third proportional to 86,611.50 and 126,920.25 is: 185,988.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,611.50 : 126,920.25 = 126,920.25 : x
  2. Step 2: Convert to fraction form
    86,611.50/126,920.25 = 126,920.25/x
  3. Step 3: Cross multiply
    86,611.50x = 126,920.25 × 126,920.25
  4. Step 4: Simplify right side
    86,611.50x = 16,108,749,860.06
  5. Step 5: Solve for x
    x = 16,108,749,860.06/86,611.50
  6. Step 6: Final answer
    x = 185,988.58

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.